2) Put back in place the pins in their hole, making sure that they are
inserted correctly. Fix the shackle in the chosen hole and link the
lifting system.
3) Lift the first box, place the second box on the floor just
underneath the first one. Let down slowly the first box over
the second one, aligning the bumpers and the slots of the two
loudspeakers. Note: a proper wedge placed between the cabinet to
be linked and the floor can be useful.
4) Link the first box to the second box using two coupling bars: remove the pins and the locking plates and insert the bars into the cabinet
rails from the front.
